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23320364687 = 87721265847
BaseRepresentation
bin10101101110000000…
…001000011010001111
32020012020101021022122
4111232000020122033
5340230003132222
614414020203155
71453620554264
oct255600103217
966166337278
1023320364687
119987813174
124629b394bb
13227856a379
1411b328326b
159174e2a42
hex56e00868f

23320364687 has 4 divisors (see below), whose sum is σ = 23320718256. Its totient is φ = 23320011120.

The previous prime is 23320364671. The next prime is 23320364701. The reversal of 23320364687 is 78646302332.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23320364687 - 24 = 23320364671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320364387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45203 + ... + 220644.

It is an arithmetic number, because the mean of its divisors is an integer number (5830179564).

Almost surely, 223320364687 is an apocalyptic number.

23320364687 is a deficient number, since it is larger than the sum of its proper divisors (353569).

23320364687 is an equidigital number, since it uses as much as digits as its factorization.

23320364687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353568.

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 23320364687 in words is "twenty-three billion, three hundred twenty million, three hundred sixty-four thousand, six hundred eighty-seven".

Divisors: 1 87721 265847 23320364687